Statics, equilibrium sphere in a groove on an incline plane

In summary: W instead of F?In summary, the ball rests in the 132° groove and bears against the end plate, which is normal to the direction of the groove. The angle θ, measured from the horizontal, for which the reaction on each side of the groove equals the force supported by the end plate is θ=45 degrees.
  • #36
J-dizzal said:
θ=arctan(1/2sinα)
=50.87 incorrect
There's another error in the working in the image attached to the OP. Didn't spot it before. You've swapped the 24 degrees and the 66 degrees.
 
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  • #37
haruspex said:
There's another error in the working in the image attached to the OP. Didn't spot it before. You've swapped the 24 degrees and the 66 degrees.
yea!
Thanks haruspex.
 

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